This project is to design and construct the replacement of a single span or double span, two lane bridge in accordance with these tender documents.

 The existing bridge structure is located on Buangor-Ben Nevis Road, between Warrak Road and Rocky Road (Coordinates 37°16'21.5"S 143°09'04.4"E).

The tender is a design and construct project which requires the proposed bridge to be completely redesigned and replaced with a single span or double span bridge to the current standard (SM 1600) for a 100-year design life.

The following table provides a summary of dimensions of the existing bridge. Note dimensions are approximate and require confirmation through reference to the feature survey and site verification.

Specification:

Concept design drawings for the replacement of the bridge structure have not been produced. It is expected that preliminary concept drawings will be provided by the applicant as part of their tender submission. To maintain waterway capacity and minimise costs, it is anticipated that the design solution will incorporate an equal amount or fewer pier groups.

The new width of the bridge, approach roadways and the section of road between the bridges is to accommodate a clear width of two through lanes (7.2m). Consideration in the design will need to be given to services located adjacent to the structure and how they will be incorporated into the design.

New pavement will be required on both approaches to the bridge. This is to be designed in accordance with Austroads and certified as a part of the project works.

The horizonal alignment of the approach roads and bridges is to match the existing alignment as best as possible and shall satisfy the requirements for an 100km/h speed environment. The vertical alignment of each bridge structure is to be modified to improve the waterway capacity under both structures. The 1% AEP flood levels have been provided in Schedule B (1.2.2).

A new and compliant road safety barrier railing (depending on final design) shall be provided.

Beaching material or other means of scour protection shall be included in the design certification process.

The contractor is responsible for the preparation of all associated documents and permits as outlined in the Schedules below.